_____________________
                                             |                     
                       ______________________|
                      |                      |
                      |                      |_____________________
                      |                                            
 _William D. COX _____|
| (1869 - ....) m 1890|
|                     |                       _____________________
|                     |                      |                     
|                     |______________________|
|                                            |
|                                            |_____________________
|                                                                  
|
|--Robert M. COX 
|  (1906 - 1976)
|                                             _David COBB _________+
|                                            | (1820 - 1887) m 1843
|                      _Robert COBB _________|
|                     | (1846 - 1920) m 1868 |
|                     |                      |_Harriet C. GOSSETT _+
|                     |                        (1825 - 1889) m 1843
|_Harriet E. R. COBB _|
  (1872 - ....) m 1890|
                      |                       _____________________
                      |                      |                     
                      |_Sarah Jane GRIFFITH _|
                        (1847 - 1922) m 1868 |
                                             |_____________________